JP3423560B2 - connector - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector composed of a plug connector and a receptacle connector and fitted with each other. More specifically, in addition to a signal contact, a power source contact and a connector fixing metal fitting are provided. Regarding the connector.

[0002]

2. Description of the Related Art In so-called notebook computers,
FD drive or CD-R to reduce the size of the main body
An external storage device such as an OM drive can be connected by a connector. Further, such a notebook computer is often configured so that a rechargeable battery (so-called battery pack) can be used as a power source.

A signal connector having a signal contact of about 80 pins is required to connect an external storage device, and a power source having a larger capacity than the signal contact is required to connect the battery pack. A connector for a power supply having the contact of is also required. Providing a signal connector for connecting an external storage device and a power connector for connecting a battery pack leads to an increase in the size of the device in a notebook computer in which the space where the connector can be provided is limited. .

Therefore, it is conceivable that the connector provided on the personal computer side can be commonly used as a signal connector and a power connector, and an external storage device or a battery pack is connected as necessary. Then, as such a connector that can be used in common, two left and right end portions of a plurality of signal contacts lined up in the left-right direction are provided.
Conventionally, a connector provided with a pole power contact is used.

In the personal computer provided with the connector thus constructed, the connector is attached by using the fixing metal fitting provided in the housing of each connector.
Each connector is composed of a plug connector and a receptacle connector as described above, but the case and the board to which the plug connector and the receptacle connector are attached have their respective grounds, and the respective fixing brackets are also connected to this ground. It is connected.

[0006]

However, since the electric potentials of the case and the board to which the respective connectors are attached may be different from each other, when the two connectors are fitted together, the electric potential of the case and the board is different from that of the case and the board. There is a problem in that a potential difference may be generated between the two to cause noise generation.

Further, in the connector constructed as described above, there is a case where it is necessary to perform so-called hot plugging / unplugging in which both connectors are fitted or unfit from the state in which the contacts for power supply are energized. is there. However,
If both connectors are mated while the power contacts are energized, noise or other noise may occur due to a voltage or current larger than the rating flowing when the contacts are connected (so-called “peak occurs”). There is a problem in that hot-swapping cannot be performed because there is a risk of misidentification as a signal.

The present invention has been made in view of these problems. Signals and power supplies can be connected to each other, and noise generation at the time of connection can be reduced.
It is an object to provide a connector that can be hot-plugged and unplugged.

[0009]

In order to achieve the above object, a connector according to the present invention is constructed by holding a plurality of signal plug contacts in a plug housing side by side in the left-right direction while extending vertically. And a receptacle connector configured by holding a plurality of signal receptacle contacts in the receptacle housing in a state of extending in the up-down direction and arranged side by side in the left-right direction. The plug housing has a rectangular box-shaped plug outer wall with an open upper surface, and a signal plug contact is arranged in the plug outer space surrounded by the plug outer wall, and the receptacle housing has a rectangular box-shaped receptacle. A signal receptacle contact is provided along the inner surface of the outer wall portion of the receptacle while having an outer wall portion, and the outer wall portion of the receptacle is inserted into the outer space of the plug to be received and fitted into the outer wall portion of the plug to receive a signal. Is configured to be connected to the corresponding signal receptacle contact.

The connector of the present invention further comprises a two-pole power source plug contact which is arranged side by side in the left and right direction of the signal plug contact and which extends vertically in the left and right end portions of the outer wall of the plug. , Are arranged side by side to the outside of the signal receptacle contact in the left-right direction and extend vertically in the left and right ends of the receptacle outer wall, and the power supply is received while the receptacle outer wall is received and fitted in the plug outer wall. 2 to be connected with the plug contact
Pole power supply receptacle contact, plug connector fixing metal fittings for fixing the plug connector to the board, etc. that are made of conductive material and attached to the outer surface of the left and right ends of the plug outer wall, and receptacle made of conductive material It is attached to the outer surface of the left and right ends of the outer wall, and is equipped with a receptacle fixing bracket for fixing the receptacle connector to the board, etc. When the receptacle outer wall is received and fitted in the plug outer wall, the plug connector is fixed. The metal fitting and the receptacle connector fixing metal fitting are configured to come into contact with each other for electrical connection.

Further, the upper surfaces of the left and right end portions of the plug outer side wall portion on which the power source plug contact is disposed project upward to form guide protrusions, and the receptacle outer side wall portion is received and fitted in the plug outer side wall portion. The guide protrusion is configured to act as a guide for fitting the outer wall of the receptacle into the outer space of the plug when performing. This facilitates fitting of the plug connector and the receptacle connector.

According to the connector thus constructed, the signal contacts and the power contacts are arranged in a line in the left-right direction, so that the connector can be downsized. Then, since the connector fixing fittings are connected to each other in a state where both connectors are fitted to each other, when the connector fixing fittings of the connectors of the respective connectors are attached so as to come into contact with the grounds of the respective boards, The grounds of the respective boards can be connected to each other. As a result, the potential difference between the substrates can be minimized.

The plug connector fixing metal fittings and the receptacle connector fixing metal fittings are attached to the outer surfaces of the left and right end portions of the plug outer wall portion and the receptacle outer wall portion where the power plug contact and the power receptacle contact are arranged, Since at least a part of the outer circumference of the power plug contact and the power receptacle contact is covered, both fixing brackets can shield a part of the outer circumference of the power contact, and when the power contact is energized. The noise generated from the connector can be reduced.

Further, the power supply plug contact and the power supply receptacle contact may be arranged at asymmetrical positions with respect to the signal plug contact and the signal receptacle contact. With such a configuration, it is possible to reliably prevent erroneous fitting of the connector having the wrong polarity of the power contact.

Further, in the above connector, when the plug connector is fitted into the receptacle connector,
First, connect the plug connector fixing bracket and the receptacle connector fixing bracket, then connect the power plug contact and the power receptacle contact, and then connect the signal plug contact and the signal receptacle contact. It is preferable to configure. With such a configuration, the connection for the power supply is made after the connection of each connector to the ground, and the contact for the signal is connected after the power supply flowing through the contact for the power supply is stabilized.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A connector, which is a preferred embodiment of the present invention, will be described below with reference to the drawings with reference to the drawings. As shown in FIGS. 1 to 10, this connector is composed of a plug connector 1 and a receptacle connector 5, and by fitting them, contacts provided on both connectors are connected. Note that FIG.
4 and FIG. 4 show both connectors in a fitted state, and the other figures show a state in which both connectors 1 and 5 are separated.

First, the plug connector 1 will be described. The plug connector 1 includes a housing 10 made of an insulating material.
Thus, a plurality of plug contacts 20 are held as shown in the figure. The plug housing 10 includes a base 11 having a rectangular plate shape, an outer wall 12 formed below the base 11 so as to extend downward in a rectangular box shape, and a rectangular shape below the base 11 inside the outer wall 12. It has a plug contact holding portion 14 formed so as to extend downward in a box shape, and is integrally formed. As a result, a plug outer space 13 that is surrounded by the outer wall portion 12 and the plug contact holding portion 14 and opens downward is formed on the lower surface side of the base portion 11.

A through hole 16 is formed in the base portion 11 so as to vertically extend through the base portion 11 in two rows, and a plug contact 20 is press-fitted and attached to the through hole 16 from the upper surface side. A plurality of guide grooves 14a are formed on the left and right outer surfaces of the plug contact holding portion 14 so as to correspond to the through holes 16, and the upper portions of the plug contacts 20 press-fitted into the through holes 16 enter the guide grooves 14a. Be guided.

A positioning protrusion 18 is formed in the plug outer space 13 so as to protrude from the inner peripheral surface 12a of the outer wall portion 12. Although the positioning protrusions 18 are shown only in the vicinity of the right end portion in each drawing, they are respectively provided in the vicinity of the left and right end portions of the plug housing 10 (a total of 2
Main) It extends vertically and is formed only on the inner peripheral surface 12a on the rear side.

The plug contact 20 is made of a conductive material and faces the plug outer space 13 to guide the guide groove 14.
The contact portion 21 guided by a and the through hole 16
A press-fitting portion 22 that is press-fitted into the inside, and a lead portion 23 that extends from the press-fitting portion 22 in the horizontal direction and is then bent into a crank shape.
Composed of and. The contact portion 21 is formed so as to have a spring property so as to spread outward, and is formed so that its lower portion is curved inward, so that the receptacle connector 5 to be described later can be easily fitted into the contact portion 21. Is formed.

Further, power supply plug contacts 30 are provided on the left and right of the plug contact holding portion 14 in the plug outer space 13. The power plug contact 30 has a contact portion 31 having a U-shaped cross section, and the contact portion 31 is formed so as to extend downward in the opening direction of the plug housing 10. A press-fitting portion 32 is formed above the contact portion 31 so as to have a width wider in the left-right direction than the contact portion 31, and a lead portion 33 extending horizontally is formed from the press-fitting portion 32.

Further, outside the left and right sides of the plug housing 10, plug connector fixing metal fittings 40, 40 also serving as metal fittings for grounding the printed circuit board K1 are attached. This plug connector fixing bracket 40, 40
As will be described later, when the plug connector 1 and the receptacle connector 5 are fitted to each other, the plug comes into contact with a receptacle connector fixing fitting 80 provided in the receptacle housing 50.

The plug connector fixing metal fitting 40 has a flat plate portion 4
1, a standing portion 42 extending vertically downward from the flat plate portion 41, and a holding portion 43 formed in a U-shape at the lower end portion of the standing portion 42 so as to spread in the left-right direction. Contact points 43a are formed on the inner sides of the respective parts so as to project inward. The plug connector fixing fitting 40 configured in this manner is held by the plug housing 10 so that the left and right ends of the plug housing 10 are held by the holding portions 43.

As described above, the outer wall portion 12 of the portion where the inner surface of the holding portion 43 is located in the state where the plug housing 10 is held is formed by cutting out so that the contact 43a projects into the plug outer space 13. It has become. Then, in the state of being held by the plug housing 10, the inner peripheral surface 12 a of the outer side wall portion 12 and the inner surface 4 of the holding portion 43.
3b and 3b will be located on the same plane. The flat plate portion 41 is burred and tapped so that it can be easily attached to a substrate or the like.

The plug connector 1 constructed in this way
The upper end surface of the lead portion 23 of the contact 20 is the substrate K1.
Placed on the signal wiring pattern of and soldered,
The upper end surface of the lead portion 33 of the power source plug contact 30 is placed on the power source pattern formed on the substrate K1 and soldered, and the flat plate portion 41 is attached to the printed circuit board K.
1 is attached to the printed circuit board K1 with the fixing screw N by using the tap formed on the flat plate portion 41 in a state of being brought into contact with the ground wiring pattern formed on 1 or the case.

Next, the receptacle connector 5 will be described. The receptacle connector 5 is configured by holding a plurality of receptacle contacts 60, 60 'by a receptacle housing 50 made of an insulating material as shown in the figure. The receptacle housing 50 has a rectangular plate-shaped base 5.
1 and a side wall portion 52 formed on the base portion 51 so as to extend upward in a rectangular box shape, and are integrally formed. The base portion 51 is surrounded by the side wall portion 52 and is opened upward. The receptacle-side space 53 is formed.
The left and right end portions of the side wall portion 52 have left and right guide protrusions 5 respectively.
6, 56 are formed, and each of the guide protrusions 56, 56 is formed in a quadrangular pyramid shape having a flat upper end surface.

In the base 51, the receptacle side space 53
Two rows of through holes 55 extending in the longitudinal direction are formed in the portion located in the inside by vertically penetrating the base portion 51. The through holes 55 have receptacle contacts 60, 6 respectively.
0'is attached by being press-fitted from the lower surface side. As shown in the drawing, a plurality of guide grooves 5 are provided on the left and right inner surfaces of the side wall portion 52.
4, 54 ′ are formed corresponding to the through holes 55, and the receptacle contacts 6 press-fit into these through holes 55.
The upper portions of the 0 and 60 'are adapted to enter and be guided in these guide grooves 54 and 54'. Since the guide groove 54 'has a contact portion 61', which will be described in detail later, inserted and held, the upper portion is formed shorter than the guide groove 54, and the cross-sectional shape in the direction perpendicular to the vertical direction is the same. is there.

In the vicinity of the left and right end portions of the rear surface 52b of the side wall portion 52, the receptacle connector 5 is provided with the plug connector 1.
In the state of receiving and fitting
At the position corresponding to 8, 18, the positioning protrusions 18, 1
Positioning grooves 58, 58 into which 8 can be inserted are formed extending in the vertical direction.

The receptacle contact 60 has a contact portion 61 facing the inside of the receptacle side space 53 and guided by a guide groove 54, a press-fitting portion 62 press-fitted into the through hole 55, and a left-right direction from the press-fitting portion 62. It is composed of a lead portion 63 which is extended and then bent into a crank shape. On the other hand, the receptacle contact 60 'has a press-fitting portion 6
2 and the lead portion 63 have the same shape as the receptacle contact 60, but the contact portion 61 'is formed to have a short length. Both contacts 60 and 60 'are made of a conductive material.

The guide projection 56 has an upper end surface and a base portion 5.
A power contact holding hole 57 penetrating through 1 is formed. The power contact holding hole 57 includes a contact holding portion 57a formed below and the contact holding portion 5a.
It is composed of an upper hole 57b formed above 7a. The upper hole 57b is connected to the insertion hole 57c formed in the upper end surface of the guide protrusion 56.

A power supply receptacle contact 70 is inserted and held in the power supply contact holding hole 57 thus formed. The power receptacle contact 70 is
Contact portions 71, 71 formed of a plate-shaped conductive material and formed to face each other in the front-rear direction, and a connecting portion 72 connecting the contact portions 71, 71 at a lower portion.
And lead portions 73 that extend in the front-rear direction and are bent in a crank shape below the connecting portion 72,
And 73. The contact portions 71, 71 are formed in a state of being slightly laid down so that the upper portions thereof are close to each other, and the upper end portions thereof are curved so as to project inward and open upward. It is designed to be selfish.

In the power contact holding hole 57,
The size of the contact holding portion 57a in the left-right direction is equal to
It is formed wider than the horizontal dimension of b. Also,
The widths of the contact portions 71, 71 in the left-right direction in the power receptacle contact 70 are formed to be slightly smaller than the width dimension of the upper hole 57b, and the width dimension of the connecting portion 72 is formed to a size capable of being press-fitted and held in the contact holding portion 57a. ing. Then, until the upper end surface 72a of the connecting portion 72 comes into contact with the upper surface of the contact holding portion 57a, the power source receptacle contact 7 is inserted from below the receptacle housing 50.
0 is inserted (press-fitted) into the power contact holding hole 57 and held.

Further, on the left and right outer sides of the receptacle housing 50, receptacle connector fixing fittings 80, 80 also serving as ground fittings for the printed circuit board K5 are attached. The receptacle connector fixing bracket 80 includes a flat plate portion 81, a rising portion 82 extending vertically upward from the flat plate portion 81, and a sandwiching portion formed in a U-shape extending in the left-right direction at an upper end portion of the rising portion 82. And 83. The receptacle connector fixing bracket 80 configured in this manner is held by the receptacle housing 50 such that the left and right ends of the receptacle housing 50 are held by the holding portions 83.

In the state of being held by the receptacle housing 50, the outer peripheral surface 52b of the side wall portion 52 and the outer surface 83a of the sandwiching portion 83 are located on the same plane. The flat plate portion 81 is burred similarly to the flat plate portion 41 and has a tap.

The plug connector 5 constructed in this way
Is the lead portion 6 of the receptacle contact 60, 60 '.
The upper end surfaces of the reference numerals 3, 63 'are placed on the wiring pattern of the board K1 and soldered, and the lower end surfaces of the lead portions 73 of the power supply plug contacts 70 are placed on the power supply wiring pattern formed on the board K5. While being placed and soldered, the flat plate portion 81 is brought into contact with the wiring pattern for ground formed on the printed circuit board K5 or the case by using the tap formed on the flat plate portion 81 to the printed circuit board K5. It is configured so that it can be attached with a fixing screw N.

Here, a case will be described in which the plug connector 1 configured as described above is provided in a personal computer body (not shown), and the receptacle connector 5 is used in a battery pack and a CD-ROM drive connected to the personal computer. As described above, the plug connector 1 has the contacts 20 and 30 soldered to the printed circuit board provided on the personal computer body, and the plug connector fixing bracket 40.
Is attached to the computer case.

When the receptacle connector 5 is used as a connector for connecting a battery pack, the power pack receptacle contacts 70, 70 at both ends and some of the receptacle contacts 60 or 60 'are provided in the battery pack. Solder to the printed circuit board. In the battery pack configured as described above, power can be supplied to the computer by connecting the receptacle connector 5 to the plug connector 1 provided in the computer body, and the remaining amount of power of the battery pack and the like can be checked. It can be displayed on a computer.

Here, when connecting both connectors 1 and 5, the positioning protrusion 1 is provided only on the rear side of the plug housing 1.
8 and 18 are formed, and the receptacle housing 5 is also formed with positioning grooves 58 and 58 only on the rear side.
The front and rear (left and right) of the connector will not be connected in a reversed state. In addition, since the guide protrusions 56, 56 are formed at the left and right ends of the receptacle connector 5 at the time of connection, even if the positions of the plug contact holding portion 14 and the receptacle-side space 53 do not match, both connectors 1, The outer wall 1 when brought closer to fit
Positions where the end faces of the left and right end portions of 2 come into contact with the slopes of the guide protrusions 56, 56 and the plug contact holding portion 14 can be inserted into the receptacle-side space 53 (the positioning protrusions 18, 18 and the positioning grooves 58, 58 coincide) Position).

According to the plug connector 1 and the receptacle connector 5 thus constructed, both connectors 1,
5, the positioning protrusion 18 and the positioning groove 58
By this action, the polarities (+, −) of the power contacts 30, 70 provided at the left and right ends of the connectors 1, 5 are not exchanged and connected, and the receptacle connector 5 is inclined with respect to the plug connector 1. It will not be inserted afterwards.

When the connectors 1 and 5 are fitted together, the contact 43a of the plug connector fixing fitting 40 and the outer surface 83a of the holding portion 83 of the receptacle connector fixing fitting 80 come into contact with each other, whereby the plug connector fixing fitting 40 and the receptacle. Since it is electrically connected to the connector fixing bracket 80, the ground of the battery pack can be strengthened. Further, both the ground metal fittings 40 and 80 are provided in the holding portion 4
Since the power supply contacts 30 and 70 are provided so as to surround a part of the outer circumference of the power supply contacts 30 and 70, a part of noise generated in the power supply contacts 30 and 70 when energized can be shielded. The noise generated from the connector can be reduced.

In the plug connector 1 and the receptacle connector 5 described above, the fitting and removal (insertion / removal) of both connectors 1 and 5 are performed by the power contacts 30 and 7.
There is a case where so-called hot plugging and unplugging is performed while the power is supplied to 0. Therefore, when the connectors 1 and 5 are fitted together, the ground fittings 40 and 80 and the power contact 3
By connecting the 0, 70 and the signal contacts 20, 60, 60 'in this order in a staggered manner, it is possible to prevent the generation of noise from the power contact which may be mistaken for a signal.

That is, when the connectors 1 and 5 are fitted together, the grounding metal fittings 40 and 80 are first connected, then the power contacts 30 and 70 are connected, and then the receptacle contact 60 in which the contact portion 61 is long. And the plug contact 20 are connected, and finally, the ground metal fittings 40 and 80 and the contacts 20 and 60 are connected so that the receptacle contact 60 ′ having a short contact portion 61 ′ and the plug contact 20 are connected. It is formed and arranged in each housing 10, 50.

It should be noted that the connector according to the present invention does not necessarily require the ground metal fittings 40, 80 and the power contacts 30, 7.
It is not necessary to make a staggered connection in the order of 0 and the signal contacts 20, 60, 60 '. For example, the connection between the receptacle contact 60 and the plug contact 20 and the connection between the power source contacts 30 and 70 are performed almost at the same time, and thereafter,
Receptacle contact 60 'and plug contact 20
Depending on the equipment used, the ground metal fittings 40, 8 may be connected to the ground metal fittings 40, 80 at the same time.
0, power contacts 30, 70, signal contacts 2
The order of the staggered connections of the three parties of 0, 60, 60 'may be changed appropriately.

Further, the receptacle connector 5 is replaced with a CD-R.
When used as a connector for connecting the OM drive,
Nothing is connected to the receptacle contacts 70, 70 for power supply at both ends, and the receptacle contacts 60 and 60 'are connected.
Is soldered to a printed circuit board provided in the CD-ROM drive. In the CD-ROM drive thus configured, the CD-ROM drive can be used as an external storage device of the computer by connecting the receptacle connector 5 to the plug connector 1 provided in the computer body.

When connecting to or disconnecting from the CD-ROM drive in this way, at least one of the computer main body and the CD-ROM drive may be turned on. In such a case, among the various signals transmitted by each contact, a specific signal is transmitted before other signals (connected before other contacts) at the time of connection,
When disconnecting, it may be necessary to perform staggered connection at the signal contact, which is cut off later than other signals (released later than other contacts).

Here, when both connectors 1 and 5 are fitted,
Plug contact 20 and receptacle contact 60,
60 'comes into contact with each other, but as described above, the plug housing 1 is attached to the receptacle housing 50 by the positioning protrusions 18, 18 and the positioning grooves 58, 58.
0 is inserted straight. Therefore, the contact portion 6
The receptacle contact 60 having the longer contact portion 61 contacts the plug contact 20 earlier than the receptacle contact 60 'having the shorter 1'.

Therefore, the receptacle contact 60 having the long contact portion 61 is used for the signal which is to be connected first and then to be disconnected when the connector is inserted / removed, and the contact portion 61 'is formed short for the other signals. By using the receptacle contact 60 ′, the staggered connection can be surely performed.

In the above connector, the plug contact 20 and the receptacle contacts 60, 6 are included.
The case where 0'is used as a contact that only transmits a signal has been described, but the present invention is not limited to this, and is provided separately from the power contacts 30 and 70 or together with the power contacts 30 and 70. The plug contact 20 and a part of the receptacle contact 60, 60 'can also be used as a contact for connecting a power source.

That is, when there is a signal to be connected after connecting the power source at the time of inserting / removing the connector or a signal to be disconnected before the power source is turned off, the receptacle contact 60 having a long contact portion 61 is used for the power source. Good. On the contrary, when there is a signal to be connected in advance before connecting the power supply when inserting / removing the connector or a signal to be disconnected after the power supply is turned off, the receptacle contact 61 ′ for the power supply is short. 60 'may be used.

Further, in the above connector, the signal contacts 20, 60, 60 'are staggered by changing the length of the receptacle contacts 60, 60', but the present invention is not limited to this. However, the staggered connection may be performed by changing the length of the plug contact 20.

According to the above connector, the case of the personal computer and the case of the CD-ROM drive can be electrically connected by the plug connector fixing metal fitting 40 and the receptacle connector fixing metal fitting 80.
The potential difference between the case of the personal computer and the case of the CD-ROM drive can be made zero (both cases have the same potential), and also from this point, the generation of noise can be reduced.

In the above connector, both ground metal fittings 40 and 80 are used to strengthen the ground and shield noise from the power contacts, but power is supplied in addition to the power contacts 30 and 70. It can also be used as a contact for a power supply for switching. As a result, even if the capacity is small only with the power contacts 30 and 70, both the ground metal fittings 40 and 80 can supplement the capacity.

In the above connector, the contacts 30 and 70 for supplying electric power from the battery pack are provided at the left and right end portions of the connectors 1 and 5, which are the outer sides of the contacts 20 and 60 in the left and right direction. However, the present invention is not limited to this, and contacts 20 and 60 for signal connection are provided so that contacts 20 and 60 for signal connection and contacts 30 and 70 for power supply do not erroneously contact.
The positions of the contacts 30 and 70 for the power source may be formed so as to be asymmetrical with respect to the left and right.

For example, taking the receptacle contact as an example, as shown in FIG. 11, one power supply receptacle contact 170 is provided at an end of the receptacle housing 150, and the other power supply receptacle contact 170 ′ is provided in the receptacle housing 150. You may comprise so that it may be provided in a central part. In addition, as shown in FIG. 12, power supply receptacle contacts 270, 270 '.
Are provided at both ends of the receptacle housing 250, and the closing portion 256 for closing the receptacle side space 253 is provided only on the other side of the power source receptacle contact 270 ′ so that the plug connector (not shown) is fitted in the opposite side. You may comprise so that it may not match.

In the above connector, the power source contacts 3 are provided at the left and right ends of the housings 10, 50.
Although the noise generated from the power contact is shielded by providing the outer periphery of 0 and 70 in a U-shape, the sandwiching portions 43 and 83 are extended in order to enhance the shielding effect. The housings 10 and 50 may be configured to cover the entire outer circumference. Thereby, not only the power contact 70 and the like, but also the noise generated from the signal contact 60 and the like can be blocked.

Further, in the above connector, since both connectors 1 and 5 are mounted on the board, the bottom surfaces of the flat plate portions 41 and 81 of the ground metal fittings 40 and 80 are substantially the bottom surfaces of the housings 10 and 50. Although it is formed in a substantially L shape so as to be located on the same plane, the ground metal member does not necessarily have to be formed in such a substantially L shape. For example, it may be formed in a U shape so as to be fixed to a case or the like in the left and right side surfaces of the connector, or in a substantially L shape such that the flat plate portion of the ground metal member is positioned parallel to the front or rear surface of the connector. The connector may be formed so as to be fixed to the case or the like on the front surface or the rear surface side of the connector.

In the above-mentioned connectors 1 and 5, the flat plates 41 and 81 of the ground fittings 40 and 80 are burred and attached to the respective boards K1 and K5 by using the taps that are set up. However, it is not always necessary to make a tap on the flat plate portions 41 and 81, and a through hole for attachment may be formed. Furthermore, when mounting on a substrate by soldering, taps or through holes need not be formed.

[0058]

As described above, the connector according to the present invention is provided with two-pole power contacts arranged side by side in the left-right direction of the signal contacts, and the connector fixing brackets are provided at the left and right ends of each housing. Are provided, and these connector fixing fittings are connected when the plug connector and the receptacle connector are fitted together. Therefore, the connector can be downsized, and when the two connectors are fitted together, the connector fixing fittings are connected to each other, so that it is possible to connect the grounds of the boards and the like to which the respective connectors are attached,
The potential difference between the substrates can be minimized. Furthermore, the upper surfaces of the left and right end portions of the plug outer side wall portion on which the power plug contact is disposed project upward to form guide protrusions, and when the receptacle outer side wall portion is received and fitted in the plug outer side wall portion. Since the guide protrusion is configured to act as a guide for causing the outer wall portion of the receptacle to project into the outer space of the plug, the plug connector and the receptacle connector can be easily fitted to each other.

Further, the plug connector fixing fitting and the receptacle connector fixing fitting are attached to the outer surfaces of the left and right end portions of the plug outer wall portion and the receptacle outer wall portion where the power plug contact and the power receptacle contact are arranged, Since at least a part of the outer circumference of the power plug contact and the power receptacle contact is covered, both fixing brackets can shield a part of the outer circumference of the power contact, and when the power contact is energized. The noise generated from the connector can be reduced. Note that the power contact may be arranged in a laterally asymmetrical position with respect to the signal contact. With such a configuration, the polarity of the power contact may be wrong and the connector may be wrongly fitted. Can be reliably prevented.

Further, at the time of receiving and fitting the plug connector into the receptacle connector, connection between the plug connector fixing metal fitting and the receptacle connector fixing metal fitting, connection between the power plug contact and the power supply receptacle contact,
It is preferable that the signal plug contact and the signal receptacle contact are connected in a staggered order in the order of connection.

With this configuration, the power contacts are connected after the respective connectors are connected to the ground, and the signal contacts are connected after the power source flowing through the power contacts is stabilized. . As a result, noise that might be mistaken for a signal when the connector is fitted does not occur from the power contact,
It is possible to insert and remove each connector when the power contact is in the energized state, that is, so-called hot-line insertion and removal.

[Brief description of drawings]

FIG. 1 is a perspective view showing a receptacle connector and a plug connector as an example of a connector according to the present invention.

FIG. 2 is a II-II sectional view of the connector in FIG.

3 is a II in FIG. 2 showing a fitted state of the connector.
It is a sectional view of the I-III portion.

FIG. 4 is an IV in FIG. 2 showing a fitted state of the connector.
FIG. 4 is a sectional view of a IV portion.

5 is a partially enlarged view of FIG. 2 as seen from the direction of arrow V. FIG.

6 is a sectional view taken along line VI-VI in FIG.

7 is a sectional view taken along line VII-VII in FIG.

FIG. 8 is a view on arrow VII in FIG.

9 is a sectional view taken along line IX-IX in FIG.

10 is a sectional view taken along line XX in FIG.

FIG. 11 is a perspective view showing a receptacle connector having a different structure according to the present invention.

FIG. 12 is a perspective view showing a receptacle connector having a different structure according to the present invention.

[Explanation of symbols]

1 plug connector 5 Receptacle connector 10 plug housing 20 plug contacts 30 Power plug contact 40 Plug connector fixing bracket 50 receptacle housing 60,60 'Receptacle contact 70 Receptacle contact for power supply 80 Receptacle connector fixing bracket

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-7-9241 (JP, A) JP-A-6-45013 (JP, A) JP-A-7-153536 (JP, A) JP-A-8- 125360 (JP, A) Actual opening 2-102681 (JP, U) Actual opening 1-159367 (JP, U) Actual opening 4-52389 (JP, U) Actual opening 5-73877 (JP, U) 3-39267 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) H01R 13/64-13/658 H01R 24/00

Claims (3)

(57) [Claims] 1. A plug connector configured to hold a plurality of signal plug contacts in a plug housing in a state of being extended in a vertical direction and arranged side by side in a horizontal direction, and a plurality of signal receptacle contacts in a receptacle housing in a vertical direction. And a plug connector surrounded by the plug outer wall portion, the plug housing having a rectangular box-shaped plug outer wall portion having an open upper surface. The signal plug contact is disposed in an outer space, the receptacle housing has a rectangular box-shaped receptacle outer wall portion, and the signal receptacle contact is disposed along an inner surface of the receptacle outer wall portion. The outer wall of the receptacle, the plug of the outer wall of the plug A connector configured to be received and fitted in a side space to connect the signal plug contact to a corresponding signal receptacle contact, the connector being located side by side in the lateral direction outside the signal plug contact. A two-pole power source plug contact, which is arranged to extend in the vertical direction at the left and right end portions of the plug outer side wall portion, and is arranged side by side in the left and right direction of the signal receptacle contact, and the left and right sides of the receptacle outer side wall portion. A two-pole power supply receptacle contact, which is arranged to extend in the vertical direction at the end portion and is connected to the power supply plug contact in a state where the receptacle outer wall portion is received and fitted in the plug outer wall portion, and a conductive material. And attached to the outer surfaces of the left and right end portions of the plug outer wall portion, the plug connector A plug connector fixing metal fitting for fixing to the outer surface of the outer wall of the receptacle outer wall, and a receptacle fixing metal fitting for fixing the receptacle connector to a board or the like. When the receptacle outer side wall portion is received and fitted in the plug outer side wall portion, the plug connector fixing metal member and the receptacle connector fixing metal member are configured to abut and electrically connect, and the power source plug contact is provided. Upper surfaces of left and right end portions of the plug outer wall portion project upward to form guide protrusions, and when the receptacle outer wall portion is received and fitted in the plug outer wall portion, the guide protrusions are provided outside the receptacle. It is configured to act as a guide for fitting the wall into the plug outer space. Connector according to claim. 2. The power supply plug contact and the power supply receptacle contact are arranged at left-right asymmetrical positions with respect to the signal plug contact and the signal receptacle contact. Connector described. 3. The plug contact for power supply and the power supply after connecting the plug connector fixing bracket and the receptacle connector fixing bracket when receiving and fitting the receptacle outer side wall part in the plug outer side wall part. 3. The vertical length of each contact is set so as to connect the signal receptacle contact and the signal plug contact and then connect the signal plug contact and the signal receptacle contact. Connector described in.